Floating type blind insertion quick connector

Abstract

The utility model discloses a floating type blind insertion quick connector which comprises a male head assembly and a female head assembly, and a floating assembly is arranged on the periphery of the female head assembly. The floating assembly comprises a first mounting disc, a second mounting disc and more than one group of spring bolts; the first mounting disc is connected to the periphery of the female head assembly, and a first hole is formed in the first mounting disc; a second hole is formed in the second mounting disc; the spring bolt comprises a bolt and a pressure spring, a rod portion of the bolt sequentially extends into the first hole and the second hole, the pressure spring is arranged on the periphery of the rod portion of the bolt in a sleeved mode and abuts against the position between the first installation disc and the second installation disc, a movable gap is kept between the rod portion of the bolt and the inner wall face of the first hole, and the rod portion of the bolt is fixed relative to the position of the second installation disc. If the axis of the male head assembly deviates from the axis of the female head assembly, the floating assembly outside the female head assembly can make the female head assembly deflect under the action of external force, so that the male head assembly can be smoothly inserted into the female head assembly.

Description

Technical Field

[0001] This utility model relates to the field of quick connectors, and in particular to a floating blind-fit quick connector. Background Technology

[0002] Quick connectors typically include a male connector assembly and a female connector assembly. The two ends of the female connector assembly are a female plug end and a female connector end, respectively. The two ends of the male connector assembly are a male plug end and a male connector end, respectively. The male plug end and the female plug end can be plugged into each other for compatibility.

[0003] In actual use, if the axis of the male connector is off from the axis of the female connector, i.e., they are not aligned, the corresponding ends of the male and female connectors are prone to wear under external force. Prolonged use will affect the quality of the quick connector. Moreover, when they are not aligned, the insertion operation is more difficult, which affects the user experience.

[0004] Based on this, some research and improvements have been made in the industry to achieve two-axis self-correction alignment through a floating design. For example, CN 207864857 U describes a two-axis movable self-correcting connector bracket structure, including a male connector and a female connector. The female connector includes a female connector fixing plate with a through hole and a female connector body. An XY-axis floating spring is installed in the through hole. The head of the female connector body passes through the XY-axis floating spring and is mounted on the female connector fixing plate by a nut. A quick-connect fitting is connected to the head of the female connector body. The male connector includes a male connector fixing plate and a male connector body. The male connector body passes through the male connector fixing plate and is fixed thereon. A quick-connect fitting can be inserted into the male connector body. By utilizing the return-to-axis capability of the XY-axis floating spring, the female connector body inserted in the through hole can automatically return to the axis, thereby compensating for the drawback of frequent wear in the XY direction.

[0005] However, it relies on the through holes on the female head fixing plate to accommodate the XY floating springs. Due to the thickness of the female head fixing plate, the number of XY floating springs that can be selected is limited, which limits the preload that the XY floating springs can provide. This makes it difficult to apply to some scenarios with slightly higher requirements. Moreover, it requires corresponding modifications to the original joint structure, which makes it difficult to promote and implement.

[0006] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0007] In view of this, the present invention addresses the deficiencies of the existing technology and its main objective is to provide a floating blind-plug quick connector. By providing a floating component on the outer periphery of the female connector assembly, if the axis of the male connector assembly deviates from the axis of the female connector assembly during insertion, the floating component outside the female connector assembly can cause the female connector assembly to swing under the action of external force, thereby allowing the male connector assembly to be smoothly inserted into the female connector assembly.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A floating blind-mating quick connector includes a male connector assembly and a female connector assembly. The two ends of the female connector assembly are a female plug end and a female connector end, respectively. The two ends of the male connector assembly are a male plug end and a male connector end, respectively. The male plug end and the female plug end can be plugged into each other for adaptation.

[0010] A floating component is provided on the outer periphery of the female head assembly;

[0011] The floating assembly includes a first mounting plate, a second mounting plate, and a set of more than one set of spring bolts;

[0012] The first mounting plate is connected to the outer periphery of the female connector assembly to be fixed to the female connector assembly, and the first mounting plate is provided with a first hole that passes through the first mounting plate in the insertion direction;

[0013] The second mounting plate is provided with a second hole extending along the insertion direction; the female connector end, the first mounting plate, and the second mounting plate are arranged sequentially along the insertion direction;

[0014] The pressure spring bolt includes a bolt and a pressure spring. The shank of the bolt extends sequentially into the first hole and the second hole. The pressure spring is sleeved on the outer periphery of the shank of the bolt and abuts against the opposite sides of the first mounting plate and the second mounting plate. The head of the bolt is located on the side of the first mounting plate away from the second mounting plate. The shank of the bolt maintains a movable gap with the inner wall surface of the first hole. The shank of the bolt is fixed in position relative to the second mounting plate.

[0015] As a preferred embodiment, the outer periphery of the female connector assembly is provided with a first external thread, and the first mounting plate is provided with a first internal thread. The first internal thread is connected to the outer periphery of the first external thread, so that the first mounting plate is fixed on the female connector assembly.

[0016] As a preferred embodiment, the inner wall of the second hole is provided with a second internal thread, and the shank of the bolt is provided with a second external thread to connect to the second internal thread;

[0017] And / or:

[0018] The shank of the bolt passes through the second hole and extends out of the second mounting plate on the side opposite to the first mounting plate, and the extended portion of the shank of the bolt is provided with a third external thread.

[0019] As a preferred embodiment, a first spring positioning groove is provided on the side of the first mounting plate facing the second mounting plate, corresponding to the periphery of the first hole, and the end of the pressure spring facing the first mounting plate extends into the first spring positioning groove.

[0020] On the side of the second mounting plate facing the first mounting plate, a second spring positioning groove is provided around the second hole, and the end of the pressure spring facing the second mounting plate extends into the first spring positioning groove.

[0021] As a preferred embodiment, the shank of the bolt includes a spring sleeve section and an external thread section, wherein the outer diameter of the pressure spring sleeve section is larger than the outer diameter of the external thread section, and a limiting step is formed between the pressure spring sleeve section and the external thread section, wherein the limiting step is restricted by the side of the second mounting plate facing the first mounting plate.

[0022] As a preferred embodiment, the second mounting plate is provided with a clearance hole, through which the connector end of the female head assembly passes.

[0023] As a preferred embodiment, the outer periphery of the male connector assembly is provided with a fourth external thread, and a nut is connected to the fourth external thread. When the nut is rotated, the nut is displaced relative to the fourth external thread along the insertion direction to move away from the male connector end. Part of the internal thread of the nut disengages from the fourth external thread, so that the nut is threadedly connected to the fourth external thread and other equipment respectively.

[0024] As a preferred embodiment, the first mounting plate is provided with a plurality of first holes arranged at circumferential intervals, the second mounting plate is provided with a plurality of second holes arranged at circumferential intervals, and a plurality of sets of pressure spring bolts are provided accordingly, such that the plurality of sets of pressure spring bolts are arranged at circumferential intervals along the outer periphery of the female head assembly.

[0025] As a preferred embodiment, the preload of the pressure spring is greater than the insertion force when the male connector assembly and the female connector assembly are connected.

[0026] As a preferred embodiment, the male connector assembly includes a male connector sleeve, a male connector pagoda connector, and a nut; one end of the male connector sleeve is provided with a male connector insertion end, and the other end is threadedly connected to the male connector pagoda connector, and the nut is connected to the external thread of the male connector pagoda connector; the female connector assembly includes a female connector inner fixing sleeve and a female connector pagoda connector, one end of the female connector inner fixing sleeve is provided with a female connector insertion end, and the other end is threadedly connected to the female connector pagoda connector.

[0027] Compared with existing technologies, this invention has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly involves setting a floating component on the outer periphery of the female connector assembly. During insertion, if the axis of the male connector assembly deviates from the axis of the female connector assembly, under the action of external force, the floating component outside the female connector assembly can cause the female connector assembly to swing, thereby allowing the male connector assembly to be smoothly inserted into the female connector assembly. Since the floating component is an additional addition, it can be applied to various quick-connect female connector assemblies, offering good versatility. Moreover, the floating component includes a first mounting plate, a second mounting plate, and one or more spring bolts, resulting in a simple structure that is easy to process and assemble. Simultaneously, the external floating component also strengthens the structure and protects the female connector assembly. Therefore, the floating blind-plug quick-connect coupling proposed in this invention is suitable for widespread application.

[0028] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0029] Figure 1 This is a perspective view (unconnected state) of a floating blind-plug quick connector according to an embodiment of the present invention.

[0030] Figure 2 This is a perspective view (in the plugged-in state) of a floating blind-plug quick connector according to an embodiment of the present invention.

[0031] Figure 3 This is another perspective view (in the plugging state) of the floating blind-plug quick connector according to an embodiment of the present invention.

[0032] Figure 4 This is a cross-sectional view of the female head assembly (additional floating assembly) according to an embodiment of the present invention;

[0033] Figure 5 This is a cross-sectional view of the male connector assembly according to an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached diagram: Male connector assembly 10, Male connector end 11, Male connector end 12, Male connector sleeve 101, Male connector pagoda connector 102, Nut 103, Female connector assembly 20, Female connector end 21, Female connector end 22, Female inner fixing sleeve 201, Female pagoda connector 202, Floating assembly 30, First mounting plate 31, Second mounting plate 32, Spring bolt 33, Bolt 331, Compression spring 332, First external thread A1, First internal thread B1, First hole 311, Second internal thread B2, Second external thread A2, Third external thread A3, Fourth external thread A4. Detailed Implementation

[0035] Please refer to Figures 1 to 5As shown, it illustrates the specific structure of an embodiment of the present invention.

[0036] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] A floating blind-mating quick connector includes a male connector assembly 10 and a female connector assembly 20. The female connector assembly 20 has a female connector end 21 and a female connector end 22 at its two ends. The male connector assembly 10 has a male connector end 11 and a male connector end 12 at its two ends. The male connector end 11 and the female connector end 21 are mutually pluggable and compatible. In this embodiment, the male connector assembly 10 includes a male connector sleeve 101, a male connector pagoda-shaped connector 102, and a nut 103. One end of the male connector sleeve 101 is provided with the male connector end 11, and the other end is threaded by the male connector pagoda-shaped connector 102. The nut 103 is connected to the external thread of the male pagoda connector 102. The female connector assembly 20 includes a female inner fixing sleeve 201 and a female pagoda connector 202. One end of the female inner fixing sleeve 201 is provided with a female insertion end 21, and the other end is threadedly connected to the female pagoda connector 202. Since the technical solution of this utility model adopts a floating component 30 on the outer periphery of the female connector assembly 20, the structure of the male connector assembly 10 and the female connector assembly 20 is not limited, that is, it is not limited to the male connector assembly 10 and the female connector assembly 20 of this embodiment.

[0038] The floating assembly 30 includes a first mounting plate 31, a second mounting plate 32, and one or more spring bolts 33.

[0039] The first mounting plate 31 is connected to the outer periphery of the female connector assembly 20 to be fixed to the female connector assembly 20. For example, the outer periphery of the female connector assembly 20 is provided with a first external thread A1, and the first mounting plate 31 is provided with a first internal thread B1. The first internal thread B1 is connected to the outer periphery of the first external thread A1, so that the first mounting plate 31 is fixed to the female connector assembly 20. The first mounting plate 31 is provided with a first hole 311 that passes through the first mounting plate 31 in the insertion direction.

[0040] The second mounting plate 32 is provided with a second hole extending along the insertion direction; the female connector end, the first mounting plate 31, and the second mounting plate 32 are arranged sequentially along the insertion direction; the second mounting plate 32 is provided with a clearance hole, the connector end of the female connector assembly 20 passes through the clearance hole, and the female connector assembly 20 and the second mounting plate 32 maintain an active gap.

[0041] The pressure spring bolt 33 includes a bolt 331 and a pressure spring 332. The shank of the bolt extends sequentially into the first hole 311 and the second hole. The pressure spring 332 is sleeved on the outer periphery of the shank of the bolt and abuts against the opposite sides of the first mounting plate 31 and the second mounting plate 32. Considering the ease of spring installation, a first spring positioning groove is provided on the side of the first mounting plate 31 facing the second mounting plate 32, corresponding to the periphery of the first hole 311. The end of the pressure spring 332 facing the first mounting plate 31 extends into the first spring positioning groove. On the side of the second mounting plate 32 facing the first mounting plate 31, a second spring positioning groove is provided on the periphery of the second hole. The end of the pressure spring facing the second mounting plate 32 extends into the first spring positioning groove. Furthermore, the bolt shank includes a spring sleeve section and an external thread section. The outer diameter of the spring sleeve section is larger than the outer diameter of the external thread section. A limiting step is formed between the spring sleeve section and the external thread section. The limiting step is restricted by the side of the second mounting plate 32 facing the first mounting plate 31. In this embodiment, the second external thread B2 and the third external thread A3 are both provided on the external thread section and are of equal size, which facilitates manufacturing. The bolt head is located on the side of the first mounting plate 31 opposite to the second mounting plate 32. The bolt shank maintains a movable clearance with the inner wall of the first hole 311, ensuring that the female head assembly 20 has room to swing up, down, left, right, and back and forth. The bolt shank is fixed in position relative to the second mounting plate 32. During the insertion operation, when the male connector 10 contacts the female connector 20, if the axis of the male connector 10 deviates from the axis of the female connector 20, under the action of external force, the floating component 30 outside the female connector 20 can cause the female connector 20 to sway, allowing the male connector 10 to be smoothly inserted into the female connector 20. In addition to causing the female connector 20 to sway, the springs outside the female connector 20 typically have a total preload greater than the insertion force during quick-connect connection to ensure the springs are not compressed. If a set of bolt springs is used, the preload of the pressure springs is greater than the insertion force when the male connector 10 and the female connector 20 are connected, ensuring the springs are not compressed. In actual design, the number of bolt spring sets can be selected according to the insertion force; alternatively, different springs (with different preloads) can be used. With multiple bolt spring sets, the sum of the preloads of the pressure springs is greater than the insertion force when the male connector 10 and the female connector 20 are connected.

[0042] In this embodiment, the inner wall of the second hole is provided with a second internal thread B2, and the shank of the bolt is provided with a second external thread A2 to connect to the second internal thread B2; and / or: the shank of the bolt passes through the second hole and extends out of the second mounting plate 32 on the side opposite to the first mounting plate 31, and the protruding part of the shank of the bolt is provided with a third external thread A3, which can be used to fix the entire female head assembly 20 (with floating assembly 30) to other equipment. An external nut adapted to the third external thread A3 can also be configured outside the third external thread A3, which can be used to limit the second mounting plate 32 to the side opposite to the first mounting plate 31.

[0043] Preferably, the first mounting plate 31 is provided with a plurality of first holes 311 arranged at circumferential intervals, the second mounting plate 32 is provided with a plurality of second holes arranged at circumferential intervals, and a plurality of sets of pressure spring bolts 33 are provided accordingly, so that the plurality of sets of pressure spring bolts 33 are arranged at circumferential intervals along the outer periphery of the female head assembly 20, the floating force is balanced, the structural strength is reliable, and the floating assembly 30 plays a good role in surrounding and protecting the female head assembly 20.

[0044] The male connector assembly 10 includes a male connector sleeve 101, a male connector pagoda connector 102, and a nut 103. One end of the male connector sleeve 101 is provided with a male connector insertion end 11, and the other end is threadedly connected to the male connector pagoda connector 102. The nut 103 is connected to the external thread of the male connector pagoda connector 102. The outer periphery of the male connector assembly 10 is provided with a fourth external thread A4. The nut 103 is connected to the fourth external thread A4. When the nut 103 is rotated, the nut 103 is displaced relative to the fourth external thread A4 in the insertion direction to move away from the male connector insertion end 11. Part of the internal thread of the nut 103 disengages from the fourth external thread A4, so that the nut 103 is threadedly connected to the fourth external thread A4 and other equipment respectively. In this way, the entire male connector assembly 10 can be fixed to other equipment.

[0045] The key design feature of this invention lies in the floating component 30 located on the outer periphery of the female connector assembly 20. During insertion, if the axis of the male connector assembly 10 deviates from the axis of the female connector assembly 20, the floating component 30 causes the female connector assembly 20 to sway under external force, thus facilitating the smooth insertion of the male connector assembly 10 into the female connector assembly 20. Since the floating component 30 is an additional addition, it is applicable to various quick-connect female connector assemblies 20, offering good versatility. Furthermore, the floating component 30 includes a first mounting plate 31, a second mounting plate 32, and one or more spring bolts 33, resulting in a simple structure that is easy to process and assemble. Simultaneously, the external floating component 30 also strengthens the structure and protects the female connector assembly 20. Therefore, the floating blind-plug quick-connect coupling proposed in this invention is suitable for widespread application.

[0046] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A floating blind-mating quick connector, comprising a male connector assembly and a female connector assembly, wherein the two ends of the female connector assembly are a female plug end and a female connector end, respectively, and the two ends of the male connector assembly are a male plug end and a male connector end, wherein the male plug end and the female plug end are mutually pluggable and compatible, characterized in that: A floating component is provided on the outer periphery of the female head assembly; The floating assembly includes a first mounting plate, a second mounting plate, and a set of more than one set of spring bolts; The first mounting plate is connected to the outer periphery of the female connector assembly to be fixed to the female connector assembly, and the first mounting plate is provided with a first hole that passes through the first mounting plate in the insertion direction; The second mounting plate is provided with a second hole extending along the insertion direction; the female connector end, the first mounting plate, and the second mounting plate are arranged sequentially along the insertion direction; The spring bolt includes a bolt and a pressure spring. The shank of the bolt extends sequentially into the first hole and the second hole. The pressure spring is sleeved on the outer periphery of the shank of the bolt and abuts against the opposite sides of the first mounting plate and the second mounting plate. The head of the bolt is located on the side of the first mounting plate away from the second mounting plate. The shank of the bolt maintains a movable gap with the inner wall surface of the first hole. The shank of the bolt is fixed in position relative to the second mounting plate.

2. The floating blind-mating quick connector according to claim 1, characterized in that: The outer periphery of the female head assembly is provided with a first external thread, and the first mounting plate is provided with a first internal thread. The first internal thread is connected to the outer periphery of the first external thread so that the first mounting plate is fixed on the female head assembly.

3. A floating blind-mating quick connector according to claim 1, characterized in that: The inner wall of the second hole is provided with a second internal thread, and the shank of the bolt is provided with a second external thread to connect to the second internal thread; And / or: The shank of the bolt passes through the second hole and extends out of the second mounting plate on the side opposite to the first mounting plate, and the extended portion of the shank of the bolt is provided with a third external thread.

4. A floating blind-mating quick connector according to claim 1, characterized in that: On the side of the first mounting plate facing the second mounting plate, a first spring positioning groove is provided around the first hole, and the end of the pressure spring facing the first mounting plate extends into the first spring positioning groove. On the side of the second mounting plate facing the first mounting plate, a second spring positioning groove is provided around the second hole, and the end of the pressure spring facing the second mounting plate extends into the first spring positioning groove.

5. A floating blind-mating quick connector according to claim 3, characterized in that: The bolt shank includes a spring sleeve section and an external thread section. The outer diameter of the pressure spring sleeve section is larger than the outer diameter of the external thread section. A limiting step is formed between the pressure spring sleeve section and the external thread section. The limiting step is restricted by the side of the second mounting plate facing the first mounting plate.

6. A floating blind-mating quick connector according to claim 1, characterized in that: The second mounting plate is provided with a clearance hole, through which the connector end of the female head assembly passes.

7. A floating blind-mating quick connector according to claim 1, characterized in that: The male connector assembly has a fourth external thread on its outer periphery, and a nut is connected to the fourth external thread. When the nut is rotated, the nut is displaced relative to the fourth external thread along the insertion direction to move away from the male connector end. Part of the internal thread of the nut disengages from the fourth external thread, so that the nut is threadedly connected to the fourth external thread and other equipment respectively.

8. A floating blind-mating quick connector according to claim 1, characterized in that: The first mounting plate is provided with a plurality of first holes arranged at circumferential intervals, and the second mounting plate is provided with a plurality of second holes arranged at circumferential intervals. The pressure spring bolts are provided in a plurality of groups, such that the plurality of groups of pressure spring bolts are arranged at circumferential intervals along the outer periphery of the female head assembly.

9. A floating blind-mating quick connector according to claim 1, characterized in that: The preload of the pressure spring is greater than the insertion force when the male connector assembly and the female connector assembly are connected.

10. A floating blind-mating quick connector according to claim 1, characterized in that: The male connector assembly includes a male connector sleeve, a male connector pagoda connector, and a nut; one end of the male connector sleeve is provided with a male connector insertion end, and the other end is threadedly connected to the male connector pagoda connector, and the nut is connected to the external thread of the male connector pagoda connector; the female connector assembly includes a female connector inner fixing sleeve and a female connector pagoda connector, one end of the female connector inner fixing sleeve is provided with a female connector insertion end, and the other end is threadedly connected to the female connector pagoda connector.

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